Bun for Visual Studio Code installs statistics

Bun for Visual Studio Code

This extension adds support for using Bun with Visual Studio Code. Bun is an all-in-one toolkit for JavaScript and TypeScript apps.

At its core is the Bun runtime, a fast JavaScript runtime designed as a drop-in replacement for Node.js. It's written in Zig and powered by JavaScriptCore under the hood, dramatically reducing startup times and memory usage.

Documentation • Discord • Issues • Roadmap

Features:

• Live in-editor error messages (gif below) • Vscode test runner support • Debugger support • Run scripts from package.json • Visual lockfile viewer for old binary lockfiles (bun.lockb)

Bun test runner integration

Run and debug tests directly from VSCode's Testing panel. The extension automatically discovers test files, shows inline test status, and provides rich error messages with diffs.

In-editor error messages

When running programs with Bun from a Visual Studio Code terminal, Bun will connect to the extension and report errors as they happen, at the exact location they happened. We recommend using this feature with bun --watch so you can see errors on every save.

In the example above VSCode is saving on every keypress. Under normal configuration you'd only see errors on every save.

Errors are cleared whenever you start typing, or whenever the extension detects that Bun just started running (or reloading) a new program.

Configuration

.vscode/launch.json

You can use the following configurations to debug JavaScript and TypeScript files using Bun.

.vscode/settings.json

You can use the following configurations to customize the behavior of the Bun extension.